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Feeding habits of larval Clupea pallasii in the Eastern Jinhae Bay, Korea

진해만 동부해역에 분포하는 청어 (Clupea pallasii) 자치어의 식성

  • KIM, Hyeon-Ji (Department of Seafood & Aquaculture Science / Institue of Marine Industry/Marine Bio-Education & Research Center, Gyeonsang National University) ;
  • JEONG, Jae-Mook (Coastal Water Fisheries Resources Research Division, National Institute of Fisheries Science) ;
  • PARK, Jong-Hyeok (Department of Seafood & Aquaculture Science / Institue of Marine Industry/Marine Bio-Education & Research Center, Gyeonsang National University) ;
  • BAECK, Gun-Wook (Department of Seafood & Aquaculture Science / Institue of Marine Industry/Marine Bio-Education & Research Center, Gyeonsang National University)
  • 김현지 (경상대학교 해양식품생명의학과.해양산업연구소.해양생물교육연구센터) ;
  • 정재묵 (국립수산과학원 연근해자원과) ;
  • 박종혁 (경상대학교 해양식품생명의학과.해양산업연구소.해양생물교육연구센터) ;
  • 백근욱 (경상대학교 해양식품생명의학과.해양산업연구소.해양생물교육연구센터)
  • Received : 2016.10.25
  • Accepted : 2017.02.16
  • Published : 2017.02.28

Abstract

The feeding habits of larval (5.0~27.0 mm SL) Clupea pallasii were examined and 1,523 individuals were collected from November 2010 to March 2011 in the coastal water of Eastern Jinhae Bay, Korea. Larval C. pallasii were fed mainly on copepods that constituted 55.2% in IRI. Monogeneans were the second largest prey component, another prey items tintinnids, cladocerans and ostracoda. The results of analysis in ontogenetic changes exhibit high during the daytime, two small size classes (${\leq}10mm$, 10~15 mm) mainly fed copepods. while the percentage of coperpods decreased, monogeneans ratio increased in 15~20 mm size class. Feeding rate in diel difference of larval C. pallasii were high during the daytime.

Keywords

Larval fishes;Clupea pallasii;Feeding habits;Daily feeding rate

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